CT, also known as CAT scanning, is an advanced x-ray system that generates detailed cross-sectional images of the body. Each image provides the visual equivalent of a bloodless slice of the anatomy. When stacked together, these slices create detailed studies of the organs as well as the head, spine, chest, abdomen, and many other areas of the body.

CT scans can be done even if you have a pacemaker or aneurysm clip -- devices implanted in your chest to help regulate your heartbeat. However, if you're pregnant or suspect you might be, tell your doctor. Your doctor may suggest postponing the procedure or choose an alternative exam that doesn't involve radiation, such as an ultrasound or MRI.

Before Your Scan: Some CT scans are enhanced by the use of IV or oral contrast. If your exam requires contrast, you should not eat anything for six hours prior to your appointment. In addition, please refrain from drinking anything within an hour of your exam. You may be asked to wear a gown during your exam and you will need to remove all jewelry, dentures, hearing aids, etc., that might interfere with the scan.

Time Required for Your Scan: CT exams generally last 15-30 minutes, however, if your scan requires you to drink oral contrast prior to your exam, you will be asked to arrive 1 hour prior to your scheduled appointment time.

Who Performs Your Scan: An ARRT Certified Radiologic technologist will perform the exam

During Your Scan: As the scan begins, you will hear a slight whirring sound from the CT machine. The technologist will position you on a table within the scanner's doughnut-shaped ring, which will move you through the machine for the exam. To produce the clearest images possible, please lie still throughout the exam and follow the breathing instructions given by your technologist over the intercom.

After Your Scan: You may be asked to wait for a short time after your exam while the radiologist reviews all the scans to ensure that the needed information has been obtained. Occasionally, repeat or additional scans are required.  Once it is determined that your exam is complete, you may leave. The radiologist will send a report to your physician, typically within 48 hours. If IV or oral contrast was used during your scan it is best to drink plenty of fluids afterward to help eliminate it from your body.

Radiation Safety & CT Scans
Adventist Medical Center and Gresham Imaging Center are committed to providing excellent image quality in order to ensure accurate diagnoses. We also adhere to best medical practice guidelines by minimizing the radiation dose to each and every patient. The concept known as ALARA (as low as reasonably achievable) is employed to guide the balance between image quality and dose. Click here for more information about the careful steps taken by Adventist Medical Center and Gresham Imaging Center to assure your care and safety are our first priority.

This procedure can be performed at either Adventist Medical Center or here at Gresham Imaging Center.